Current Span Setting; Auto Power-Off (Sleep) Function - Omega CA450 User Manual

4.4.4

Current Span Setting

You can select one of the following two current spans.
The following two percentage displays vary depending on the selected range: the output current
value and the measured current value for mA measurement mode in the 0 mA range.
Current Span Output Current and Measured Current (0 mA range)
Setting
 to 20 mA .000 mA
0 to 20 mA 0.000 mA
You can use the following method to set (change) the current span.
) Turn the function switch to the "OFF" position, or put the CA0 into sleep mode.
2) While holding down the RANGE key, turn the function switch to any position.
If the CA0 is in sleep mode, hold down the RANGE and LIGHT keys for 2 seconds
or longer.
) After all the LCD elements appear and then disappear, release the key.
) After setting the current span, turn the function switch to the "OFF" position, or put the
CA0 into sleep mode.
If the current span was set to  to 20 mA, this operation changes it to 0 to 20 mA.
If the current span was set to 0 to 20 mA, this operation sets it to  to 20 mA.
The setting you make remains valid until you change it.

4.5 Auto Power-Off (Sleep) Function

When the Auto Power-Off Function Is Enabled
"AUTO OFF" appears.
• The CA0 has an auto power-off function that automatically switches itself to sleep
mode 20 minutes after the last key operation.
The buzzer makes a beeping sound approximately 0 seconds before the CA0 enters
sleep mode. (This period is referred to as the warning period.)
• If you press a key or switch during the warning period, the time before auto power-off is
extended.
• You can clear sleep mode by turning the function switch to the OFF position, waiting 
second or longer, and then turning the switch to any position other than OFF. (You can
also hold down the LIGHT key for 2 seconds or longer to clear sleep mode.
When the Auto Power-Off Function Is Disabled
) Turn the function switch to the "OFF" position, or put the CA0 into sleep mode.
2) While holding down HOLD, turn the function switch to any position.
If the CA0 is in sleep mode, hold down the HOLD and LIGHT keys for 2 seconds or
longer.
The auto power-off function is disabled, and "AUTO OFF" disappears.
When the display is 0% When the display is 100%
20.000 mA
20.000 mA
9
Notes
Factory default
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